Seat back cushion



June 25, 1940. A CAMPBELL 2,205,465

SEA'i' BACK CUSHION Filed Oct. 30, 1937 INVENTOR BY HARRY A. CAMPBELL M A TTORNE Y6.

Patented June 25, 1940 UNITED STATES PATENT OFFICE SEAT BACK CUSHION Application October 30, 1937, Serial No. 171,821

1 Claim.

This invention relates to a seat for an automobile and particularly to the back portion thereof.

An object of the invention is to provide a detachable cushion for the seat back which may be secured to the seat back as a complete unit and to provide a padded portion which embraces the upper edge of the seat back.

A further object of the invention is to provide in concealed securing means for the several parts of the cushion and to cover the upholstery securing means on the seat back by the upholstery or padded portion of the cushion.

Other objects and advantages of the invention i=3 will be more fully understood from the following description taken in connection with the accompanying drawing, in which:

Fig. 1 is a side elevation of an automobile seat, parts being broken away and in section.

Fig. 2 is an enlarged sectional View of the upper portion of the seat back showing the relation of the cushion relative to the seat backjust prior to final assembly.

Fig. 3 is a view corresponding to Fig. 2 but showing the cushion in assembled position embracing the upper edge of the seat back.

Fig. 4 is a side elevation of an automobile seat showing a modified form of the invention in which the side edges of the cushion are between side flanges connecting the bottom of the seat with the seat back whereas in Fig. 1 the side edges of the cushion overlap the connecting flange; and r Fig. 5 is a sectional view of the upper portion of a seat back showing a modified construction.

Referring to the drawing, the seat is shown having a bottom portion I0 and an integrally connected back portion I2. The portions ill and ii! are connected along their edges by side flanges 40 I4 and the back portion has a depressed forwardly extending portion H5 at its lower edge to provide a toeboard it for occupants, behind the seat, when used as a front seat of an automobile. The upper edge of the seat back l2 has a forwardly extending flange 2U. Adjacent the upper edge of the back l2 and below the flange 2G is a reinforcing strip 22 having a raised rib 24 and upper and lower forwardly extending flanges 25 and 28 respectively. The upper flange 25 has at its free edge a plurality of downwardly and rearwardly extending prongs 30. The reinforcing strip 22 is secured to the back l2 preferably by welding. A padding 32 may be arranged on the rear surface of the back [2 and a fabric prongs 30 extending over the flange 20, back l2 and padding 32. g

A bottom cushion 3B is rem'ovably supported on the bottom portion II] of the seat. This cushion is of the well-known type consisting of a frame, springs and padding.

The seat back cushion has a frame 40 provided with a rearwardly extending flange 42 at substantially right angles to the frame 40. A channel 44 is secured underneath the flange 42 with its open side directed downwardly. The free side 46 of the channel 44 is provided with a plurality of struck out tabs 48 for receiving upholstery material, hereinafter more fully described. The forward face of the frame 4!] is provided with a plurality of struck out tabs 50 for receiving spring binding material 52. The tabs 50 are pressed over a bead 54 secured to the edge of the binding 52.

Coil springs 56, of the usual design, are carried on the forward face of the frame 4!! and are attached to the binding 52 as shown at 5B. The lower edge of the frame 40 is provided with apertured straps for receiving bolts 62 which secure the lower edge of the frame to the depressed portion IS.

A padding 64 is arranged over the forward surface of the springs 56 and extends from the bottom of the frame 40 upwardly over the flange 42 and channel 44. At the outer edge of the padding 64 there is a flexible flap 66 which may be of fabric material and stitched to the padding 64. A slotted rubber moulding 58 having fabric 10 secured to its outer surface is carried by the outer edge of padding 64 preferably secured thereto by the stitching securing the flap B6. The rubber moulding, except for the stitching, is free from the flap 66 and is slotted as at 12. To apply the padding '64 to the frame 40 the padding 64 is placed on the springs 56 and the flap 66 is drawn down over the outer free side 46 of the channel 44 and a bead 12 at the edge thereof is held in position by the tabs 48 being bent down into gripping engagement. The

rubber moulding $8 is then opened up to fit over the tabs 48 and the lower free edge of the channel side wall 46 to a position shown on the drawing.

In the form of the invention shown in Figs. 1, 2 and 3 the padding 64 is provided with rearwardly extending side flanges 14 which fit over the side edges of the frame 40.

When it is desired to assemble the unitary seat back cushion on the seat back it is placed as a completely assembled unit on the forward face of the seat back l2 in a position shown in Fig. 2. The cushion is then slid downwardly with the channel 46 fitting over the inwardly extending flange 2n, the rubber 88 covering the joint and serving as a padding, as shown in 3. The flanges 14 are then secured to the flanges M by screws 16 and the bolts 62 inserted through the straps B0 securing the lower edge in position.

In the form of the invention shown in Fig. 4 the edges of the cushion and padding 64' are inserted between the flanges I 4, whereas in Fig. 1 the flanges 14 are on the outside of the flanges I 4.

The structure shown in Fig. 5 is substantially the same as shown in the other figures except that the rubber moulding G8 is secured to the inner lining T8 of the padding 64 and the outer covering 80 extends around the outer surface of the moulding B8. The beaded edge of the lining 18 is held in the slot 12 when the moulding embraces the side 46 of the channel M. In this form of the invention there are no tabs, such as tabs 48 on the side wall 46 of Figs. 2 and 3, the padding being held in position by the slotted its upper edge for embracing the upper edge of 7.

said back member and a padding secured to the bottom of said frame member and extending upwardly over the front face of said frame and detachably secured to the lower edge of said flangeby a yieldable attaching member that is adapted to yieldably engage the upper edge of said back member.

HARRY A. CAMPBELL. 

